The Internet Pinball Serial Number Database or IPSND collects serial numbers of
pinball machines and publishes a database of these on the Internet. Our goal is
to make available a registration of all pinball machines in existence and allow
tools for slicing, dicing and visualization of the data.

Coverage is a mathematical interpretation of the serial numbers that have been submitted so far. The term 'coverage' relates to the amount of the production run that has been 'covered' in the given submissions.

There are two coverage methods shown, each has a different approach of calculating an guess on the number of games produced by analysing the currently submitted serial numbers.

Linear: Linear coverage simply looks at the highest serial number and subtracts from it the smallest serial number to estimate the number of games produced. For some games, this works fine because the serial numbers were sequential and without gaps (Early Bally, Early Stern, etc). However, this approach starts to fail quickly for games that serial numbers are part of a bigger numbering scheme (Williams pre 1984, Current Stern) or that intentially had gaps/skips in the numbering sequence(Gottlieb post 1960). If you see a linear coverage number that is higher than the known production run, it is probably not the best way to look at the serial range and you should look at the clustered approach below.

Clustered: Clustered coverage assumes that there are gaps/skips in the serial sequence for a game. It groups the serial numbers together based upon how close they are to the next serial number in the sequence. If they fall within a certain threshold then the SerialBot assumes that there are valid serial numbers between the two. If they are far enough apart, then the SerialBot assumes this is a gap. Once all the gaps and groups are determined, it sums up all the linear ranges in each group. This way, if a sample run of games started at 15,000-15,100 and the production games started at 17,000 onwards, it would assume that the serial numbers between 15,100-17,000 were a gap an are not counted. Using this method, as more serial numbers are submitted the gap analysis will get more accurate.

Game Traits are properties for an individual game that you would like
to see tracked along with the other information gathered for a serial number submission.
Some examples of existing traits are... Joust: Black or Blue bottom
Arch, Black Knight: Faceted Inserts or Normal Inserts, Twilight Zone: 3rd Magnet
Installed or not.

have been submitted for this game...

Field Name

Descripton

Submitted By

Submit Date

Submitted

There are no traits submitted for this game

Cluster

Serial Number

Country

This section lists any known game part serials that happen to match this game's
serial mask (if defined). What this can tell you is if a game has any orphaned parts
that might exist in other machines. This generally applies to CPU/MPU boards, Driver
Boards, Display boards etc that are easily moved from game to game. Repair shops
and distributors often robbed parts from other 'scrap' games laying around
in a pinch if they were not able to fix the original part or of the original part
was damaged beyond repair. If serials start showing up in the database as 'game
parts', there is potentially a good chance that that game has been parted out
completely, which is unfortunate. It is becoming more and more common for people
to part out games and sell them on ebay simply because the seller can often make
more money that way.... Please do not sacrifice complete games for money!!!

SerialId

SerialBot

Serial Number

Type

Submitted By

Country

Details

35628

02106N

Coin Door

Rod McLarge

United States

34344

05994N

MPU/CPU

Rod McLarge

Canada

35454

06186N

Display/Driver

Rod McLarge

United States

41944

06405N

MPU/CPU

Rod McLarge

United States

39677

06441N

Display/Driver

Rod McLarge

United States

34752

06547N

Display/Driver

Rod McLarge

United States

35448

06634N

Display/Driver

Rod McLarge

United States

42808

06662N

Solenoid Driver

Rod McLarge

United States

36048

06772N

Display/Driver

Adam

United States

35775

06772N

Coin Door

Rod McLarge

United States

43067

06939N

Display/Driver

Rod McLarge

United States

48660

06941N

Display/Driver

Adam

United States

36152

07013N

Display/Driver

Pat Herbert

United States

22693

07079N

Solenoid Driver

John Vorwerk

United States

42834

07118N

Display/Driver

Rod McLarge

United States

35452

07118N

Display/Driver

Rod McLarge

United States

21144

07172N

Solenoid Driver

John Vorwerk

United States

34907

07216N

MPU/CPU

Adam

United States

35461

07344N

Sound Board

John Vorwerk

United States

36042

07461N

MPU/CPU

Adam

United States

34377

07496N

Sound Board

Rod McLarge

United States

35997

07518N

Display/Driver

Adam

United States

35995

07526N

Display/Driver

Adam

United States

39394

07545N

Solenoid Driver

Rod McLarge

United States

36229

07545N

Solenoid Driver

Adam

United States

33002

07550N

Display/Driver

Rod McLarge

United States

23841

07572N

Power Supply

John Vorwerk

United States

35530

07935N

Display/Driver

Rod McLarge

United States

42760

08265N

Solenoid Driver

Antti Peltonen

Finland

26388

08297N

Display/Driver

Antti Peltonen

Finland

26950

08312N

Display/Driver

Antti Peltonen

Finland

33014

08526N

Display/Driver

Rod McLarge

United States

35635

08633N

MPU/CPU

Rod McLarge

United States

34753

08826N

Coin Door

Rod McLarge

United States

33652

08856N

MPU/CPU

Rod McLarge

United States

35147

08870N

Display/Driver

John Vorwerk

United States

35024

08870N

Display/Driver

Rod McLarge

United States

29947

08972N

MPU/CPU

John Vorwerk

United States

47986

09379N

Display/Driver

Rod McLarge

United States

This section lists any known information about how to physically find serial numbers
on games created by this manufacturer. For all manufacturer tips, please visit the
Serial Tips Page
. (Please do not post serial numbers
here on this form.)

Posted
10/2/2008 2:04:32 AM
by
Mal Voisin
Serial found stamped in ink on top of head.

Posted
6/12/2009 5:25:53 PM
by
Larry Tuma
Serial number in lower cabinet on right side on top of 1st stiffener. Also on right top inside near ball shooter

Posted
9/17/2010 2:38:21 AM
by
Max Bowman
Stamped in upper left of cabinet on front panel above coin door. In timber. This is between the coin door and removable steel strip that holds the glass in.

This game has the following serial number formats defined in the database. As serial
numbers are sumbitted, trends are recognized and defined or information about a
serial number format is collected through historical information.

Type

Examples

RegExMask

LowerLimit

UpperLimit

AutoAssignable

Production Game interior cabinet stamp

02824, 02879, 06744

^(?<sortdata>([0-9]?)[0-9][0-9][0-9][0-9])$

1000

False

Sample Game

01023S, 01184S

^(?<sortdata>010[0-9][0-9])(S?)$

1000

1099

False

Game PCB

02824N, 07879N

^(?<sortdata>[0-1][0-9][0-9][0-9][0-9])(N)$

1000

True

Production Game

02824, 02879, 06744

^(?<sortdata>[0-9][0-9][0-9][0-9][0-9])$

1000

False

The Serial Bot Summary information here gives a detailed explanation of the Serial
Bot analysis for this specific game. The theory behind the Serial Bot is this...

Every game has many many serial number submissions, the goal of the IPSND is not
to guarantee that *all* information is 100% correct but that over time, the system
should automatically devalue inaccurate submissions while increasing the value of
correct submissions.

You may click on the SerialBot score of any submission to see how it was calculated.

SerialBot Color Codes:

- Not Validated

The serial number submission has not yet been validated by the submitter via email.

- Unknown

There is no known information on the serial number format for this game yet. As
more submissions are received we can start to make a best guess on the serial number
format.

- Good

If a serial does not fail any of the tests for a status of Warning or Bad, then
it is good.

- Suspect

A serial will have a suspect status if the format is technically correct but there
is something wrong with the data. Examples might be that the number might be too
high or low for the known range of serials for this game.

- Bad

If a game has a serial number definition mask defined for it, then a serial may
be marked as 'bad' if the number does not validate agains the mask. Masks are created
for games by looking at known serial number formats and consist of a regular expression
to define the format of a game serial.

SerialBot Scores:

1 Point

Awarded if the serial number has a game assigned to it. This autoatically makes
submissions with a known game more valuable than submissions without a known game.

1 Point

Awarded if the serial number has been 'verified' by the submitter. A submission
is 'verifed' if the submitter clicks on the link in the email sent to them for each
submission. The basis for this rule is that submissions by people that do not take
the time to respond to the email might be entering garbage data and/or giving fake
email addresses. However, it is common for 'verification' emails to get stuck in
spam filters etc, so, members may have 'verification' emails re-sent at any time.

1 Point

Awarded if the submitted serial number matches one of the predefined serial number
masks for this game.

1 Point

Awarded if the serial number was marked as 'Physically Viewed' during the submission
process. This is an interesting distinction as there are many times that serial
numbers are submitted off owners lists, Ebay auction, etc. While these serial numbers
are valuable, they may also be innacurate. In comparison, Physically Viewed serial
number submissions are numbers that the submitter has actually been in front of
the machine reading the number and then submitting it. Since it is more likely to get
a good visual from a physically viewed machine, this gains an extra point.

1 Point

If a photo is uploaded with the serial number submission. The submission automatically gains an additional point. Be aware
however that this opens the submission up to 'Nudges' by members where even more points can be added or subtracted based upon the
quality and accuracy of the photo.

-3 to +3 Points

Members can 'Nudge' every sumitted photo once and give it an extra boost of 1 point or take away 1 point depending if the
photo matches the submitted serial number. While any number of members may nudge a serial, the nudging can only affect the score
by +/- 3 points in either direction.